[Support]: Live view sometimes fails to load for Unifi camera

[masonevans]

Describe the problem you are having

I recently added a Unifi G4 Instant to my system. Sometimes when I click on the camera from Bird's eye view to view the full live view for the camera, I just get the spinner, which sits forever. Sometimes it loads ok. There doesn't seem to be anything I can do to make it work or not work. All my other cameras work fine.

Some additional things I've noticed

• When I try to load the camera stream directly in go2rtc, it doesn't ever have problems (neither MSE nor WebRTC)
• The times where I have the stream open in Frigate and it's just spinning, if I go to the go2rtc info about the camera, I do not see an MSE or WebRTC consumer listed (just the Frigate RTSP consumer). When the stream is working, the go2rtc info for the camera does show an MSE consumer. So, it seems like Frigate isn't even trying to connect (or fails to connect & aborts).
• There are no errors in the js console
• There are no errors in the Frigate or go2rtc logs
• The times where the stream is working, I can see the open websocket connection in the dev tools network tab, and I see data streaming. The times where it has failed, I can see that the websocket connection is closed, and there are alway just three messages that look like this:

I've tried different input & output args in the config but nothing seems to have any effect

Steps to reproduce

1. Go to my bird's eye view
2. Click on the camera
3. Sometimes it works, sometimes it doesn't

Version

0.14.0-da913d8

Frigate config file

mqtt:
  host: mqtt.local
ffmpeg:
  hwaccel_args: preset-vaapi
record:
  enabled: True
  retain:
    days: 14
    mode: all
snapshots:
  enabled: True
birdseye:
  mode: continuous
objects:
  track:
    - person
    - face
    - car
    - license_plate
    - cat
    - dog
    - deer
    - amazon
    - ups
    - fedex
    - package
  filters:
    person:
      threshold: .8
    car:
      threshold: .8
    dog:
      threshold: .8
    cat:
      threshold: .8
detectors:
  coral1:
    type: edgetpu
    device: pci:0
  coral2:
    type: edgetpu
    device: pci:1
motion:
  improve_contrast: True
go2rtc:
  streams:
    garageInside:
      - rtspx://192.168.1.1:7441/8sNibnNaSPM2T9J0
    garageInside_sub:
      - rtspx://192.168.1.1:7441/7RmLDIEvUrWUdBpH
  webrtc:
    candidates:
      - 192.168.1.70:8555
      - stun:8555
cameras:
  garageInside:
    ffmpeg:
      inputs:
        - path: rtsp://127.0.0.1:8554/garageInside
          input_args: preset-rtsp-restream-low-latency
          roles:
            - record
        - path: rtsp://127.0.0.1:8554/garageInside_sub
          input_args: preset-rtsp-restream-low-latency
          roles:
            - detect
    detect:
      enabled: False
      width: 1280
      height: 720
      fps: 5

Relevant log output

Nothing in the logs

Operating system

Other Linux

Install method

Docker Compose

Network connection

Mixed

Camera make and model

Unifi G4 Instant

Any other information that may be helpful

No response

[hawkeye217]

Are you using Safari?

[hawkeye217]

Well that actually might be it then. Here's something you can try:

Open the go2rtc dashboard and stream garageInside with MSE. Wait till it's up and playing. Then open a new tab/window and try viewing it in Frigate.

[masonevans]

It still fails if it takes longer than ~3 seconds to load but the failures seem like they're much less frequent.

[hawkeye217]

So one of the other devs just reminded me - Ubiquiti cameras are notorious for not having configurable i-frame intervals, they are typically 4x the frame rate. So this explains why the MSE stream is so slow to open.

[hawkeye217]

I have a PR up (#13143) with the code you've been testing. Thanks again for all your help!

[masonevans]

Thanks! I just pulled the latest dev image and confirmed that it successfully falls back to WebRTC!